* {
  margin: 0;
  padding: 0;
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  padding: 45px 0 50px;
}

.pyg_header {
  width: 100%;
  height: 45px;
  position: fixed;
  left: 0;
  top: 0;
  background-color: aqua;
  padding: 5px 10px;
}

.pyg_view {
  height: 100%;
  overflow: scroll;
}

.pyg_footer {
  position: fixed;
  width: 100%;
  height: 50px;
  left: 0;
  bottom: 0;
  background-color: pink;
}
